From 5add2aca3a8555a01f5e43b6f524df6fae8fffa5 Mon Sep 17 00:00:00 2001 From: Kuninori Morimoto Date: Tue, 13 Jan 2015 04:59:05 +0000 Subject: mmc: tmio: add .enable_dma on tmio_mmc_dma Some controllers need DMA special register/setting. This patch adds new .enable_dma callback for it. Signed-off-by: Kuninori Morimoto Signed-off-by: Ulf Hansson --- drivers/mmc/host/tmio_mmc.h | 2 ++ drivers/mmc/host/tmio_mmc_dma.c | 3 +++ 2 files changed, 5 insertions(+) (limited to 'drivers/mmc') diff --git a/drivers/mmc/host/tmio_mmc.h b/drivers/mmc/host/tmio_mmc.h index c9a8469..0699edb 100644 --- a/drivers/mmc/host/tmio_mmc.h +++ b/drivers/mmc/host/tmio_mmc.h @@ -39,6 +39,7 @@ #define TMIO_MASK_IRQ (TMIO_MASK_READOP | TMIO_MASK_WRITEOP | TMIO_MASK_CMD) struct tmio_mmc_data; +struct tmio_mmc_host; struct tmio_mmc_dma { void *chan_priv_tx; @@ -46,6 +47,7 @@ struct tmio_mmc_dma { int slave_id_tx; int slave_id_rx; bool (*filter)(struct dma_chan *chan, void *arg); + void (*enable)(struct tmio_mmc_host *host, bool enable); }; struct tmio_mmc_host { diff --git a/drivers/mmc/host/tmio_mmc_dma.c b/drivers/mmc/host/tmio_mmc_dma.c index 634b2700c..eb6b45c 100644 --- a/drivers/mmc/host/tmio_mmc_dma.c +++ b/drivers/mmc/host/tmio_mmc_dma.c @@ -30,6 +30,9 @@ void tmio_mmc_enable_dma(struct tmio_mmc_host *host, bool enable) if (host->pdata->flags & TMIO_MMC_HAVE_CTL_DMA_REG) sd_ctrl_write16(host, CTL_DMA_ENABLE, enable ? 2 : 0); + + if (host->dma->enable) + host->dma->enable(host, enable); } void tmio_mmc_abort_dma(struct tmio_mmc_host *host) -- cgit v1.1